WELL · 42-427-31560 · DISTRICT 4

Montalvo I.V. -C- #43

Plugged

Starr County · Sun field · Vertical

Montalvo I.V. -C- #43 (API 42-427-31560) is a plugged well in Starr County, plugged August 11, 1989, last operated by Oryx Energy Company.

The RRC has issued one drilling permit, issued July 27, 1981, permitted to 7,500 ft.

It was permitted by Sun Expl. & Prod. CO.-Corpus and has since transferred to Oryx Energy Company on the wellbore schedule.

Completion filings report 6 formation tops, including A Sand, Garza Stringer, C-2, D-2-D.

Operator of record

Oryx Energy Company

Permitted by Sun Expl. & Prod. Co.-Corpus; the EWA schedule now lists a different operator.

Based in: Dallas, TX
P-5 status: Inactive (I)
P-5 last filed: Mar 27, 1998
Permits on file: 1,627
Phone: (972) 715-4000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Oryx Energy Company
Production reports	none
Latest permit	Sun Expl. & Prod. Co.-CorpusJul 27, 1981

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

7,500: total depth, ft
1: permits on file
Jul 27, 1981: last permit issued
Apr 22, 1982: completed
—: cumulative oil, bbl
—: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Apr 22, 1982
Shut in: —
Plugged: Aug 11, 1989

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
127148-99	Drill	Sun Expl. & Prod. Co.-Corpus	Jul 27, 1981	Jul 27, 1981	Aug 24, 1981	7,500

Formation tops

As filed on W-2/G-1. Subsea from 343 ft elevation.Download CSV →

Formation	MD ft	Subsea
A Sand	3,986	-3,643
Garza Stringer	4,248	-3,905
C-2	4,360	-4,017
D-2-D	4,806	-4,463
F-4-K	5,226	-4,883
Vicksburg1ST VICKSBURG	5,690	-5,347

Perforations

Perforated and open-hole intervals.

From	To	Type
3,990	4,000	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	1,502	14.75	900 S
7	7,001	9.875	1,256 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Jan 3, 1986	Jul 27, 1983	—
00	Dec 20, 1985	—	—

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Wellbore filings for 42-427-31560 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-427-31560 → scanned completion filings

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

3.1K: bbl, last 12 reported months
3.1K: bbl, all reported
Feb 1987: reported through

UIC	Kind	Status	Permitted bbl/d	Max psi	Zone ft
000058847	H-1 Injection	Plugged Sep 6, 1989	0	800	3,990–0

MONTHLY INJECTED, BBL · H-10 · LAST 1 REPORTED MONTHS

Last 12 months 3,100

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/42731560, documented in the API reference.